Split type flange connecting piece for balancing torsional moment

Abstract

The utility model belongs to the technical field of structural strength analysis, and particularly relates to a split type flange connecting piece for balancing torsional moment, which comprises a pin shaft, a flange, a flap rib web, a first connecting bolt, a second connecting bolt and a flap driving structure, a through hole of which the axis is vertical to that of the pin shaft is formed in the cylindrical surface of the pin shaft; the flange is provided with a cylinder used for installing a pin shaft and a flange edge located at one end of the cylinder, and the cylinder is provided with an installation through hole with the axis perpendicular to the axis of the cylinder. The pin shaft is inserted into a cylinder of the flange, the first connecting bolt penetrates through a flange mounting through hole to be axially fixed with a through hole of the pin shaft, the flange is fixed on a flap rib web through the second connecting bolt, and the pin shaft is fixedly connected with a flap driving structure.

Description

Technical Field

[0001] This application belongs to the field of structural strength analysis technology, and specifically relates to a split flange connector for balancing torsional moments. Background Technology

[0002] The aircraft control surfaces balance the torsional moment of the wing surface on the pivot shaft through the control device. The torsional moment is converted into an in-plane load of the rib through the pin shaft. The transition part between the pin shaft and the rib becomes a weak point in the design.

[0003] This invention designs the integral machined test piece as a split flange connector, converting the torsional moment into in-plane shear force between the ribbed flange and the ribbed connector, effectively reducing the stress level of the integral connector and reducing the structural weight; the size of the raw material is reduced, and the production cost is significantly reduced; at the same time, interference during assembly is avoided, the amount of assembly compensation is increased, the assembly difficulty is reduced, and the assembly allowance of each part is greatly increased. Summary of the Invention

[0004] To address the aforementioned problems, this application provides a split-type flange connector for balancing torsional moments, comprising:

[0005] Pin shaft, flange, flap rib web, first connecting bolt, second connecting bolt, and flap drive structure;

[0006] The pin has a through hole on its cylindrical surface with its axis perpendicular to the pin's axis; the flange has a cylinder for mounting the pin and a flange edge located at one end of the cylinder, the cylinder having a mounting through hole with its axis perpendicular to the cylinder's axis; the pin is inserted into the cylinder of the flange, a first connecting bolt passes through the flange mounting through hole and the pin's through hole for axial fixation, the flange is fixed to the flap rib web by a second connecting bolt, and the pin is fixedly connected to the flap drive structure.

[0007] Preferably, the flap rib web includes a plurality of parallel flap rib webs, each flap rib web having a plurality of through holes for the pin to pass through, a flange being installed at each flap rib web position, and a plurality of through holes for connecting the pin to the flange being provided, and connected with a first connecting bolt.

[0008] Preferably, the pins comprise a plurality of pins connected in parallel.

[0009] Preferably, the flange edge is petal-shaped.

[0010] Preferably, the through hole of the pin is in the shape of a racetrack extending along the axial direction of the pin, which reduces installation errors.

[0011] The advantages of this application include: converting torsional moment into in-plane shear force of the rib flange and rib connector, effectively reducing the stress level of the integrated connector and reducing the weight of the test piece; and reducing the size of the raw material, significantly reducing production costs; while avoiding interference during assembly, increasing assembly compensation, reducing assembly difficulty, and ensuring good interchangeability. Attached Figure Description

[0012] Figure 1 This is a front view of a split flange connector for balancing torsional torque according to a preferred embodiment of this application;

[0013] Figure 2 This is a top view of a split flange connector for balancing torsional torque according to a preferred embodiment of this application;

[0014] Figure 3 This is a schematic diagram of the connection between the flange connector and the flap according to a preferred embodiment of this application. Detailed Implementation

[0015] To make the technical solution and advantages of this application clearer, the technical solution of this application will be described in a clearer and more complete manner below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some embodiments of this application, and are only used to explain this application, not to limit this application. It should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings. Other related parts can be referred to the general design. In the absence of conflict, the embodiments and technical features in the embodiments of this application can be combined with each other to obtain new embodiments.

[0016] like Figures 1-3 As shown, to solve the above problems, this application provides a split flange connector for balancing torsional torque, comprising:

[0017] 1. Pin shaft; 2. Flange; 3. Flap rib web; 4. First connecting bolt; 5. Second connecting bolt; and 6. Flap drive structure.

[0018] The cylindrical surface of the pin 1 has a through hole with its axis perpendicular to the axis of the pin 1; the flange 2 has a cylinder for mounting the pin 1 and a flange edge located at one end of the cylinder, the cylinder having a mounting through hole with its axis perpendicular to the axis of the cylinder; the pin 1 is inserted into the cylinder of the flange 2, the first connecting bolt 4 passes through the mounting through hole of the flange 2 and is axially fixed to the through hole of the pin 1, the flange 2 is fixed to the flap rib web 3 by the second connecting bolt 5, and the pin 1 is fixedly connected to the flap drive structure 6.

[0019] In some alternative embodiments, the flap rib web 3 includes a plurality of parallel plates, the flap rib web 3 having a plurality of through holes through which the pin 1 passes, a flange 2 being installed at each flap rib web 3 position, and a plurality of through holes being provided on the pin 1 to connect with the flange 2, and connected with a first connecting bolt 4.

[0020] In some alternative implementations, the pin 1 comprises a plurality of pins connected in parallel.

[0021] In some alternative implementations, the flange edge of flange 2 is petal-shaped.

[0022] In some alternative embodiments, the through hole of the pin 1 is in the shape of a racetrack extending axially along the pin 1, reducing installation errors.

[0023] The method for determining the diameter of the pin and flange in this application is as follows:

[0024] Determine the pin diameter d1 and the flange diameter d2;

[0025] The pin bearing is subjected to torque M, based on:

[0026] , ;

[0027] The diameter of the pin d1 and the diameter of the flange d2 are obtained.

[0028] In the formula: M—torsional torque of the pin; , —Allowable shear stress for pins and flanges.

[0029] Determine the diameters d3 and d4 of the first connecting bolt 4 and the second connecting bolt 5: The pin torsional torque M is transmitted to flange 2 through the second connecting bolt 5, based on:

[0030] ,

[0031] Determine the diameter d4 of the second connecting bolt 5.

[0032] The torsional moment M of flange 2 is transmitted to the web plate 3 through the first connecting bolt 4, based on:

[0033] ,

[0034] Determine the diameter d3 of the first connecting bolt 4.

[0035] In the formula: M—torsional moment of the pin shaft; L1—projected distance of the bolt holes of flange 2 along the diameter direction of the pin shaft; L2—projected distance of the bolt holes of rib web 3 along the diameter direction of the pin shaft. The advantages of this application include: converting the torsional moment into in-plane shear force between the rib flange and the rib connector, effectively reducing the stress level of the integrated connector and reducing the weight of the test piece; furthermore, reducing the blank size and significantly lowering production costs; simultaneously avoiding interference during assembly, increasing assembly compensation, reducing assembly difficulty, and ensuring good interchangeability.

[0036] This invention utilizes a split flange connector to convert torsional torque into in-plane shear force between the ribbed flange and the ribbed connector, effectively reducing the stress level of the integrated connector and reducing structural weight; it also reduces the size of the raw material, significantly lowering production costs; at the same time, it avoids interference during assembly, increases assembly compensation, reduces assembly difficulty, and provides good interchangeability.

[0037] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A split-type flange connector for balancing torsional torque, characterized in that, include: Pin (1), flange (2), flap rib web (3), first connecting bolt (4), second connecting bolt (5), and flap drive structure (6); The cylindrical surface of the pin (1) has a through hole with an axis perpendicular to the axis of the pin (1); the flange (2) has a cylinder for mounting the pin (1) and a flange edge located at one end of the cylinder, the cylinder having an mounting through hole with an axis perpendicular to the axis of the cylinder; the pin (1) is inserted into the cylinder of the flange (2), the first connecting bolt (4) passes through the mounting through hole of the flange (2) and is axially fixed to the through hole of the pin (1), the flange (2) is fixed to the flap rib web plate (3) by the second connecting bolt (5), and the pin (1) is fixedly connected to the flap drive structure (6).

2. The split flange connector for balancing torsional torque as described in claim 1, characterized in that, The flap rib web (3) includes multiple side-by-side flap rib webs (3) with multiple through holes for the pin (1) to pass through. A flange (2) is installed at each flap rib web (3) position, and multiple through holes connected to the flange (2) are provided on the pin (1) and connected with the first connecting bolt (4).

3. The split flange connector for balancing torsional torque as described in claim 1, characterized in that, The pins (1) include multiple pins connected in parallel.

4. The split flange connector for balancing torsional torque as described in claim 1, characterized in that, The flange edge of flange (2) is petal-shaped.

5. The split flange connector for balancing torsional torque as described in claim 1, characterized in that, The through hole of the pin (1) is a racetrack shape that extends along the axial direction of the pin (1), which increases the amount of assembly compensation.

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